<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	private $_id;
  /**
   * Authenticates a user.
   * The example implementation makes sure if the username and password
   * are both 'demo'.
   * In practical applications, this should be changed to authenticate
   * against some persistent user identity storage (e.g. database).
   * @return boolean whether authentication succeeds.
   */
  public function authenticate() {
    $username = strtolower($this->username);
    $users = AdmUser::model()->find('lower(login_name)=?', array($username));
    if($users===null) {
      $this->errorCode=self::ERROR_USERNAME_INVALID;
    } else if (md5($this->password) !== $users->password) {
      $this->errorCode=self::ERROR_PASSWORD_INVALID;
    } else {
      $this->_id = $users->id_adm_user;
      $this->username = $users->login_name;
	  Yii::app()->session->add('username', $users->login_name);
      Yii::app()->session->add('password', $users->password);
     
      $this->errorCode=self::ERROR_NONE;
    }
    return !$this->errorCode;
  }

  public function getId() {
    return $this->_id;
  }
}